Perhaps you should try some spelling variations:
internacional de » internacional para (Expand Search)
de exploracao » da exploracao (Expand Search), por exploracao (Expand Search), de exposicao (Expand Search)
instituto de » institutos de (Expand Search)
de pesquisas » de pesquisa (Expand Search)
astronomo- » astronomos- (Expand Search), astronomia- (Expand Search)
iac » inac (Expand Search)

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "instituto de exploracao internacional de pesquisas astronomo- (iasc OR iac)~".
• Adding a wildcard symbol may retrieve word variants: instituto de exploracao internacional de pesquisas astronomo- (iasc OR iac)*.